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Estimation of Frequency Selectivity for OFDM Based New Generation Wireless Communication Systems

Overview In this paper, estimation of both global (long term) and local (instantaneous) frequency selectivity and rms delay spread of wireless communication channel are investigated. A practical algorithm for averaged channel frequency correlation estimation, which is used for measuring frequency selectivity, is given. Average rms delay spread of the channel is calculated from the channel frequency correlation estimate. For measuring local frequency selectivity, channel frequency response estimate is exploited. Time domain channel impulse response is obtained by taking Inverse Fast Fourier Transform (IFFT) of the sampled channel frequency response. Optimal sampling rate of the estimated channel response is investigated. Performances of the estimates are obtained in noise limited situations.

Further White Paper Details
Publisher	University of South Florida	File Format	PDF
Date Published	April 2007	Downloads	1
Format	White Papers
Topics	Wireless LAN, Mobile - Wireless Communications

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